EP 0221143 B1 19890927 - VARIABLE CLAMP FASTENER AND METHOD OF USING SAME FOR SECURING WORKPIECES TOGETHER
Title (en)
VARIABLE CLAMP FASTENER AND METHOD OF USING SAME FOR SECURING WORKPIECES TOGETHER
Publication
Application
Priority
US 72805585 A 19850429
Abstract (en)
[origin: WO8606448A1] A fastening system including a two piece swage type fastener (10) including a pin (12) and a collar (14) adapted to be swaged into lock grooves (26) in the pin (12) and in which the lock grooves (26) are helical and with the collar (14) having a limited female thread (63) which is threadably engageable with the helical lock grooves (26) for variably clamping work pieces (18, 20) to be secured prior to swage, with the collar thread (63) being deformable in response to a relative axial load between the pin (12) and collar (14) at the initiation of the swage operation but prior to swaging and in which the lock grooves (26) are shallow and have a ratio of (h/Du)x10<2> of four or less and in which the lock grooves (26) have a simulated streamlined root contour, with the collar (14) having a wall thickness defining a volume of material sufficient to provide overpacking of the shallow grooves of around 16%, and with the pin (12) and collar (14) materials having ultimate shear strengths in a ratio of around 1.8:1 to 2.4:1 and with the width of the shallow grooves (26) and intervening shoulders (60) being generally in accordance with the shear strength ratio between the pin (12) and collar (14). Wrenching means (59, 65, 67) can be provided on the collar (14) and/or the pin (12).
IPC 1-7
IPC 8 full level
F16B 19/08 (2006.01); F16B 19/05 (2006.01); F16B 41/00 (2006.01)
CPC (source: EP KR)
F16B 19/05 (2013.01 - EP KR)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
WO 8606448 A1 19861106; AR 243269 A1 19930730; AT E46747 T1 19891015; AU 5813286 A 19861118; AU 587036 B2 19890803; CA 1271064 A 19900703; CN 1004161 B 19890510; CN 86102974 A 19870218; DE 221143 T1 19871217; DE 3665908 D1 19891102; EP 0221143 A1 19870513; EP 0221143 B1 19890927; ES 296606 U 19871201; ES 296606 Y 19880516; IL 78646 A0 19860831; JP H0819925 B2 19960304; JP S63500197 A 19880121; KR 880700176 A 19880220; KR 940011912 B1 19941227; MX 171406 B 19931026; PT 82477 A 19860501; PT 82477 B 19920731; SG 62590 G 19900907; ZA 863198 B 19870128
DOCDB simple family (application)
US 8600869 W 19860424; AR 30379686 A 19860429; AT 86903028 T 19860424; AU 5813286 A 19860424; CA 507707 A 19860428; CN 86102974 A 19860429; DE 3665908 T 19860424; DE 86903028 T 19860424; EP 86903028 A 19860424; ES 296606 U 19860428; IL 7864686 A 19860429; JP 50258786 A 19860424; KR 860700949 A 19861229; MX 234186 A 19860429; PT 8247786 A 19860429; SG 62590 A 19900727; ZA 863198 A 19860429